Improvement in stave-cutting machines



- 7 2Sheets-Sheet 1; W. SISSON, deo d. W. H. 8c EJJ. SISSON, Executors.

Stave-Cutting Machine. 2,085. 3 Patented Nov. 25 879.

W. SISSON," deod. W. H; & E. J. SISSON, Exeeutors.

StavQ-Outting Machine.

No.,222,-O8 5. Patented Nov. 25,1879.

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UNITED STATES PATENT WILLIAM H. -SISSON AND EUNIOE J. SISSON, (EXEOUTORS OF WILLIAM SISSON, DEOEASED,) OF FULTON, ASSIGNORS TO HENRY M. MAGUIRE,

OF OGDENSBUBG, NEWV YORK.

IMPROVEMENT IN STAVE-CUTTING MACHINES.

Specification forming part of Letters Patent No. 222.085. dated November 25, 1879; application fi.ed

. May 17, 1879.

To all whom it may concern:

Be it known that WILLIAIVI SISSON, late of Fulton, in the county of Oswego and State of 7 New York, did i-nvent certain new and useful Improvements in Machines forOutting Staves,

of which the following is a clear and exact desponding parts in all the figures.

This invention relates to machines for cutting staves from the bolts or blocks, more especially staves intended for tight barrels or casks to hold liquids; and it consists in the detailed construction and arrangement of sectoral supports or b'earin gs for the cutter-head and guide-plate, and their combination with adjustable pitrnen and an operating shaft and pulley, substantially as hereinafter more fully set forth.

In the two sheets of drawings hereto an nexed, A A are the side pieces, which, with the bed-plate B, form the frame of the machine. The bed B has a longitudinal groove or recess, Z), in its rear side, into which is inserted the removable cutting-block G that receives the edge of the vibrating knife or cutter D.

0 c are notches made in the rear edge of bed B, back of the recess 1), to receive the curved guide-ribs E E of the curved guide plate or stock F.

G is a shaft, journaled in bearin gs in the ends-of the brackets g g of the side pieces or standards A A. Upon the projecting ends of this shaft (which is parallel to and a little above the bed-plate B) are secured two sectoral heads, H H, one at each side of and exte rior to the frame, the curved. rims of said sectoral heads or bearin gs being concentric with the shaft G.

Each of the heads H H has a projectinglug or shoulder, h, through which is inserted a set-screw, 1', bearing against the rear edge of the curved knife stock I, the curvature of which coincides with that of the rims of the heads H H upon which it rests.

The ends of the curved knife-stock 1 are perforated, as shown at k k, to receive bolts Z l, which pass through corresponding slots m m inthe heads H, and are held firmly in place by nuts I l.

The knife D is bolted firmly in a recess in the stock I, as shown more clearly in Fig. 3, and is curved to coincide with the curvature of the stock.

The curved guide-plate or guide-stock F is secured with its ends in the lower part of the heads H H concentric to shaft G, but ataless distance from this than the knifestock', so as to leave a space between the upper edge of the guide-plate and the curved knife D pro jecting down over it. Upon the front face of this curved guide-plate F are secured equidistant guide-ribs E E, which register with the slots or notches 0 c in the bed-plate B.

In the lower part of the frame, below the bed-plate B and parallel thereto, is journaled a shaft, K, provided with a driving-pulley, L, and balance-wheels M M, one on each side. Two driving-pitmen, N N, connect the wheels M M with the vibratory heads H H. Each of these pitmen consists of parallel rods 0 o, the ends of which are inserted through the halfhoXes p p, in which the crank-pins of the heads H and wheelsM are respectively pivoted, the pitman-rods being adjustable in length by their nuts q q, so that all slack caused by wear of the boxes may readily be taken up.

By the construction of the sectoral bearings or heads H H, as described, shoulders or abutments are formed on opposite sides for the knife-stock or cutter-head I and the guide plate F, the former being upon the outer side of the head or bearing H, and the latter upon the inner side of this, as will be seen more I clearly by reference to Fig. 4 of the drawings.

In this manner the knife-stock and guide-plate are both secured firmly in the head on opposite sides thereof and concentric to each other, without possibility of accidental displacement during the operation of the machine.

We claim and desire to secure by Letters Patent of the United States- 1. The combination, with the sectoral heads or bearings H H, consisting each of two concentric sectors of different radii, overlapping each other at one end so as to form shoulders or abutments on their outer and inner sides, of the adjustable outer knife-stock or cutterhead I, and inner concentric guide-plate F, substantially as set forth.

2. The combination, with the shouldered or stepped sectoral heads or bearings 11 H, constructed as described, of the adjustable pitman-rods 0 0, half boxes 19 p p p, crank- Wheels M, and shaft K, substantially as set forth.

In testimony whereof We have hereto set our hands this 10th day of May, 1879, in the presence of two subscribing Witnesses.

WILLIAM H. SISSON. [L. s.] EUNIOE J. SISSON. [L. s.] Witnesses:

W. J. WATSON,

S. B. WHITAKER. 

